Automatically-threading shuttle.



11"." s. sTmPsdN. AUTOMATICALLY THRBADING SHUTTLE.

Patented Sept 7, 1909.

EDWARD' strmfson, or rr'orisbatn, rims PANY, or" Horne-am, MASSACHUS successes, assrcuoa to await con:- srrai Genres-arrow or aims.

an'roma'r'tcanmr-rnnnanmd secs-rte.

Specification of iettersf'eltent. Application filed mm 12, 1909. ser al in. 459,944.

To all whom itma'y concern:

Be it known that I, EDWARD S. 'STIMPSON, a citizen of the United States, and resident ofHopedale, county of Worcester, State of Massachflsetts have invented an Improvement infAutomatical-lyThreading Shuttles, of which the following description, inconnection with theaccoinpanying drawing, is a specification 1 like letters on the drawing re resenting lilie parts;

battles for use in automaticsfilling repl'enishing looms are provided with threadi mg devices constructed and arranged to assurne automatically control of the thread of a sup'plg, of fillin inserted in the shuttle and to ire'ct the t read thereafter into the delivery-eye of the shuttle, the entire threading operation being effected while the 100m continues in motion.

Many forms of threading devices have been proposed and constructed, and operated with si alisucoess, to attain the desired resnlta-bn t all such devices have been soconstriicted as torequire more or less skilled labor in finishing and adjusting them in order that they may perform their-required functions This is largely due to the fact viceis made safry' thereby have 'resulte that cast'metal has been utilized in the constructioniof the threading devices, and the finishin'gand' adjusting stess rendered necesin slight variations in the finishing roduct. These Variations, slight though t ey often are,,coupled with the limitations of cast metal, have resulted in' practice in variableresnlts with threading devices designed to be duplicates of each other, so' that at times annoyingand faulty o eerati'ons have been made inanifest. In" my o or'ts to overcome-suchjmi lly operations and secure absolute uniforintt in the product, with the elimination oft e hand operations of finishing and adjusting, 13 have invented a novel form of threading" device,- made of plate or sheet-metal and formed or shaped, by'sni'table dies; 4 In mypr'esent invention the thread'in de a from a single piece of .s ectmetal; the blank being'cnt or stamped out in any suitab pro er'dies,

, gi'reh blank can bereprodnced indefinitely with the eatest exactitade.

any bars or roughness tie" to the process of; nial'ni a'cture can-Lbs readily removed-1 by tum ing orsimflar treatment, and themes entrance slot a 5 e manner and then formed by so, that the threading device;

eliminated. I greatly simplify the structure of the threading device by making it inone pieze, and reduce the cost of manufacture, an I threading operation is perfected-and made certain. H

The various novel features of my m-vem tion will be fully described in the snb'joined s5,

sfiecification and articularlypointed out in t e following claims.

In the s ecrfication' an claims herein that side or we 1 of the shuttle in. whichthe delivery-eye is located is regarded as theafront of the. shuttle, and its opposite side is referredto as the rear of theshuttle, whilethe term forward used to indicate direction, means in the: dlrection of or toward the tip of the shuttle at' the thread-deliveringend thereof. g

Figure 1-' is a-top plan view otthe eye end of a shuttle containin my present in vention; Fig. 2 is a route ovation thereof; Fig. Bis a r device; removed :Eromthe shuttle; Fig 4 is; a ri ht-hand end elevation thereof; ig. 5

is a eft-hand elevation of the threading -d'evice shown in Fig. 3.; Fig. 6 is a perspective View of the threa i view of the blank from which the threa mg device isfOrmed'; Fig 8 is a are eotive'vi'ew of the metallic liner for t e elivery-eye of the shuttle. A V a A is the shuttle, havin .abobbin reoeiving 90 opening A, Fig-f1, an ais the open delivery-eye provided with a; narrow entrance slot a, see 2, as is common inshuttles of this type, the'shuttle-wood being suitably out out or recessed to'receive the three device and to present a downwardly incline groove or channel A leading from the thread passage to? the tip ofv the einittle, the front wall' a of the channel extending to the the highest ppart to'the' upper-end oithe slot, as shown in ig'. -2,--to assist the movement! of the thread thereto in the threading opera I 1 tion.

been ed t a" art-ofithe'threadin f-ilevicew tn iy leak efliner'jifi' gasses;

Patented septic, mes.

have embodied in my present invenso 'tion certain novel features whereby. the

ont elevation of the threading ng device; Fig. 7 is a 15m with its top inclined from i e: metifllic, tubular liner a; Fig. 8, having 21 05 a longitudinal slot a to register with the an iner' 67110 of suite le plate metal, such as sheet steel,

' ample room for 'wthe thread as. it is drawn slliency inherentin 'thes set-metal, I pre- /tle-body the walls are slightlypompressed,

an inclinedhom 10 terminating at its lower A friction member or pa pp I make no claim to the liner in my resent application, however, as the same is c aimed in connection with the threading device in another application, Serial N 0. 457,254 filed by me.the 12th day of October, 1908, the threadingdevice therein being made of sheet-metal, but in two parts.

C, Fi 7, is the blank, cut or stamped out fromwhich the threading device is formed, said blank being bent up on the dotted lines 0" to present upturned opposite and substantially arallel frontand rear walls 6, 6', see Figs. ,5 and 6, connected at-their lower edges by the flat bottom b, to constitute a thread passa e. The edges of the walls at the inner end 0 the thread pa are shaped to present slightly inclined onlders 2, and the bottom is prolonged to form a slightly fanshaped extension 3,. which is upturned and bent over a ainst the shoulders, for a urpose to be ascribed, the "upper edge 0 the extension being concaved at 4, Figs. 4, 5 and 6.

Referring to Fig. 7 the left-hand wing or rtion of the blank which forms the wall is bent over along the line 0, such bent part being shaped to form a shield b which is extended frontward over the outer end of the thread passage, said shieldbeing arched or downcurved in the direction of its length and narrowed toward the ti of the shuttle, as at 5, to enter the fol-war end a", Fig. 1 of the recess or socket made in the shuttlewood.

As shown clearly in Fig. 3 the forward end of wall 6 extends beneath the shield at 6 to assist in bracing and supporting it In proper position. The e, e 7 of the shield extends diagonally from t e to of the rear wall frontward, to the front ge 8, at the beginning of the narrowed part 5, and the forward edge 9 is extended in a-diagonal direction rearward and downward towardthe rear wall of the shuttle, 'partakin of the downward curve of the part5 as s own in Figs. 2, 8 and 4.

It will be seen from an inspection of Fi n 4 that the thread passage is substantially rectangular in a cross-section, and allo s therethrough andjlne the front and rear walls are connected only at their lower ed cs by the bottom 6* of the passage said we 8 can spring or expand laterall owing to the refew to take advantage oi this resiliency to aid in holding the 1: reading devieetlghtly in place, for when it is inserted in the shut so that they will bear firmly and with an preciable'pressure against theoegi'acent wal I of therecess in the shuttle-w I The forward edge ofithe wall 5 is shaped to form at the innerend of the thread passage fits gular head'b is formed by the metal at the H right of said lineFig. 7, such head-bel curved over to lie u on the shuttle-body 'jacent the slot or.

he forward edge 13 of the head assists in directing the thread into said slot as it is drawn over the top of the wall a around the born 10 and slides down the latter beneath its heel and into the liner c, said heel performin its usual function of retaini the thread in the lined deliveryeye. -T e prolonged art 6 of the head, along the to of wall seats in .a recess a" r in the to o the shuttle, as shown in Fig. 1.

The b ank Cis shaped to provide for a beak b at the upper end of the horn, in my present invention, and formin the forward termination of the horn and t ahead 6 as will be best seen from an inspection of Figs. 3, 4 and 6, said beak taperin point and being bent to exten rearwardly over the outer end of the thread assa the point and major part of the bea .bel v turned away from the shuttle-tip, see dott lines Fig. 1. The forward face of the beak, is inclined from to to bottom and is also diagonally dispose with relation to the longitudinal axis of the shuttle, and its upper edge is inclined downward and rear-- ward toward its point from the a x 14 of the beak. By the construction lustrated the thread will slip over the beak readily and off its point into the-threading passage during the threading operation.

As clearly shown in Fig. 1 the shield b extends frontward and overhangs the beak, its front edge, 8 crossing above said beak at some distance frontward be 0nd the apex .14 of the beak, and the un er ed e of the latter is substantially horizontal. he dia onal forward ed e 9 of the shield crosses t e plane of thrun er ed 7 of the beak and extends beneath it, assiown in Fig. 4, crossing such. lane about at the median line of the three passage.

Opposite holes 15 in the walls 6, b are arranged to receive the transverse retaining bolt or fastening member M, shown in F 1, passed through the shuttle-wood crossing the thread passagej'us't above its bottom, securing the threading device in place in the shuttle. A bent car 16 on the top of thewall.b'-

into a suitable recess in the-top, of theshu'ttle,'this ear'sei'ving as a ide' for the thread when being drawn into t e assege.

toward its eee m a er suitable material is forced into Thus after been oncedrawn 1 m b tto f th th d an: nnder'the bte it eannot approach its apex 'weeiiithe exposed'part of the bolt M and neereno -to slrde-beck or rearward and the -upturned part 3 of the passage bottom fall oil-or shed theb eak. H us-t ee the inner end ofthe passage, the thread By the. constrnctmn ha m s ow ,fihe we I drawing over said friction, member and in guard 13' is located ustas "close as poss ble the concavity 4 made in the up er edge of to the tip of the-bob m 11 the shuttle, which the pent 3.. .I'a enabled to t s rovide ls'of material advantaffiem efl'ectmg promgt for a friction member havin a re atively control: of the fresh ling thread, and t e large surface to act upon the thread, to narrow-inlet to the thread passage is brought 75 provide the necessary tension, and while the very closely in line w1th the nth ofthe ad issecurely held in piece it canoe read thread as it leads thehob in forward 11y removed when worn'iitit and a fresh one wh n a fresh bobbm is inserted. n the inserted. j 1 Q shuttle. v 15 The inner, 11 right edge of the wall 6 So far as I am aware I am the first to 8 0- above the shoul er 2 is prolonged to form a construct a threading controlling and directg tapered guard 11, which is bent rearward ing device complete in ,itself' from a single J?- to overhang the inner end of the threed paspiece of plate or sheet metal, formed .and sage and its oint 17 is turned iorward' shaped frori the blank by suitahledies, and 20 toward the best and closely approaches the fiqmprehendmg means to dlrect thethread s5 opposite part. of the wall 5. A narrow lI 1BR? the Inner and outer ends of the-thread A let is thus rovided for the entrance of the pas ge nd t ma ter o effectually prevent thread to t e passage at its inner end, and escape of the thread therefrom. to facilitate such entranee of the thread I Havlng fully described my invention, what curve downward the up er edge 18 of the I claim as new and desire to secure by Letguard from the point is joining the Wall E B S iat nt i a r to the oint of the guard so that the thread 1.. An automaticallythreadin shuttle slides own over such edge, over the point having an open delivery-eye an a sheetand-into the passage."'-- metal threadi g d vi e pp site v 3o- .Dhe under edge 19 of the guardis eon 'tum'ed walls forming a three passe caved -Figs. 3 5' and 6, to act upon the bottom of-the gnssage being upturn at its thread as it whips around below the guard Inner end, sai threading device having a. and direct it downward, preventing escape horn terminating in a beai reerwardl ex oi the thread from theinner end of the pas-- tended over the outer end 0 the thread pasas sage after it has entered it. v sage, an upri ht .curved guard overhanging Should the thread fail to be directed to the mneren I oi the gzssage above the up 'the-delivery-eye of the shuttle it canlstillvbe tUII'lBdPOItIOII ofiit'e' ttom and turned todelivered freel and properl around the 'l' hqb ak, to'dll' ct'tlw thread-into and guard which t'en actsas a eader for the prevent ts esea from the passage and 4o -thread mdependently of the ege, the forward fi flelvlhg to ehver the-thread freely inicu-rveor turn of the nerd 'emg provided dep d nt y f h d y YB,'" a frontior this purpose. 01 inarily, however the werdly ,extended shield oyerap i the thread-slides across the shield onto the head bail! nd d Wn lve -t0Wnrd thes ut e-ti b and is then drown beneath the shield, the to-posltively engage and depress-theithrea 4 sdowncurved and diagonal-surface .or' edge below the beak, and m retaining bolt passed 9- aetingtopositively engage and depress trensverselythrou the walls'of'the thread I the: hread and drew 1t downward across thev pa'ssai; above its 7 'ottom. l tonerthev beak b, ofi its point and then he- 2. auto 'a-ticellyth'reedin shuttle neatlrthebeahon the first shot of th'e'shuthiring. err xop delivery-eye an a sheetru tle-after filling; replenishment. thread. 1 device having: opposite u .115. istheninthe t' read assage, belo'w'the ek' "tWll'wnlls-forminga thread passe the and the-guard b, an in the channel Alon 'hf'theagessa'ge beingtuptnrn stjts lyingacross its-front wallai. next mner endtmi threading: device having e; on returnshot the thread is-di awfieround' horn terminating in abeak, rearwardl ex- 55 the born 10 and uliuierjih'e edge 13 of the tended-oval the-outerend of thetthreix 'pas- }20' head?! marlin-directed under the. heel 11 and sage, a-gua-rd extended reel-ward from the mtn tlie' entranoesloga andrgessee thence 'upnglittinner end oh the frontwall: and

l ner. e completing {t ethreading "turned forward-toward the beakandhavin pj the shuttle.- (iln this secondvghot 1 ltedhwen edge overhanging te inner end 0 -.,9 end 8 of the sh eld act dirw' essag e ibove the uptu nod ortion of posrtwgly -hettorn,;the" per inc'li ye go of the $11 act-mgqtodirectthe bread into and' yits slower edge preventing the escape lmm, the threadpsssage-tseidl and by its for- .weerdi turn acting 'esml'e er. toideliven-the met t lit -1d & ch

- delivery-e e, and a frontwardl toward the and depress the three thread from the shuttle independently of the extended shield over a pm the beak and olwncurved ut e-ti to itive en e belo v ihe beiik. gag

3. An automatically threadin shuttle having an open delivery eye an a sheet-.

inetal threading device provided with opposite, upturned walls to form a thread assage, and with a rearwardly turned bea at the outer end thereof, said beak havin its point turned away from the nearer, ti o the shuttle, a frontwardly extended shie d overlapping the beak and actin to ositivel engageand de rose the threa be ow the eak the front e go of the shield crossing said beak at a distance in front of the apex of the beak and acting, after the thread has passed under the beak, to hold the thread towardthe front of the shuttle and revent it from being drawn backward overt e beak behind the apex thereof, and a longitudinallycnrved FI'OlOll ation of the inner upright edge 0 the rent wall turned rearwardlyto overhang the passa e at its inner end and constitute a guard, t e upper edge of the guard being inclined'rearwardly to direct' t e thread into the thread passage and its lower edge being concaved to prevent the esoa e of the thread from the passage, the longitudinal curvature bf the guard enabling it to deliver the thread freely from the shuttleindependently of the delivery-eye thereof.

4. An automatically-threading shuttle having an open delivery-eye and a ongitudinal reeess communicating therewith, and a sheet-metal threading device rovided with upturned, laterally expansib e 'front, and rear Twalls connected at their lower edges to fornra thread assage, said walls bearing firmly against t e adjacent faces of the recess to assist in securely positioning the threading device in the shuttie, the front wall having a horn terminating in a beak rearwardl extended over the outer end of the threau passa e and also having an upright guard over ran ing the inner end of the thread nssagv and turned at its point toward the melt, to assist in directing the thread in-toand preventing its escape from the passage, means frontwardly -,extended from the rear wall to overlap the beak-and dmvnourveal' to press 'the thread tnining bolt extended through the walls of ppsitively enga e anddemonth the bee and arethe threadin device and crossing the bottom ofthethma fmssage; I 5. rAithrearin device for automatlcall threading shu malformed from -a einge ieee of sheet-metnl and havin .--upturn e' d rontsand rear walls eonn at-thear lower edges by a fiat'bottom. to constitute: I

threadupassage substantially; rectangular in cross-section, the front w'al ring a threa the front wal rearwardly over the outer engagin .dia onafi ight inner edgph e' wallearryingp having-amoral nandisrearywalls to. formi 'a t read terminating in a beak rearwardly extended over the outer end of the thread means extended frontward from t 0 rear wall and overlapping carved in the direction of its forward end to positively engage and depress the thread below the beak m the threading operation, and a ta ered prolon ation on the upright edge of t e front wal curved in the direction-of its length and turned rearward .to overhan the inner end of the thread pas sage an form a fixed guard. A

6. A threadin device for automaticall threading shnttfias, formed from a sing e ieee of sheet-metal and havin upturned rent and rear walls eonnected lower edges to constitute a thread passage,

the front wall having a horn terminating in rcetlon of its forward end, topositivel en-' I gage and de rose the thread below the ak 1n the threa ing operation, and a; prolongation on the front wall extended rearward from its upright edge to overhan the inner end of the t read passage and aving its point closely approaching the rear wall and orwardly curved, to form a fixed guard, the upper edge thereof being downwardly curved from the front wall to the point, and its lower edge being concaved.

7. An al ltomatically-threading shuttle having an open delivery-e e and a threading device made of a sing e piece of sheetmetal havin opposite u turned walls formassage,a ak extended from end of the thread passage and a shield extended frontwardly from the rear well, overlapping the beak and downcurved toward the shuttle-tip below the oint of the beak to positively. engage and epress the thread below the beak.

8. A threadin device for automaticall threading shutt es, formed from arsing e piece of sheet-metal and comprising opposite uptnrned walls constituting a thread passage, :1 beak on one wall extended toward the opposite well over the outer end of the passage, and means on the said opposite wall extended above and overlapping the beak and havin a positively'actingvthreadand epressin-g surface extended across the passageand below the hen an a fixed, uprl ht guard on the ligbeak and over ging the inner and "0 thread passage.

a. An w'auten atically-threading shuttle havhin hiropen delivery-eye enda threadin sm gma em angle; n oftsheel metaltan rprow d. with u rned fl the beak and downat their .the

means overhanging the outer end of thei passa e to assume control of and direct the threat to the delivery-eye, and an n right, longitudinally tapered guard extended rearwardly from the front wall to overhan the inner end of the thread assage and having its point turned forwar and closely approaching the rear wall of the passage.

10. An automatically-threading shuttle having an open delivery-eye and a threading device formed from a single piece of sheet metal and provided with upturned front and rear walls to form a thread passa 'e, means overhanging the outer end of tie passage to assume control of and direct the thread to the delivery-eye, and an u right guard at the inner end of the three passage overhanging the same and rearwardly extended to form, with its point and the rear wall of the thread passage, a narrow inlet for the thread to enter the passa e, the inlet being substantially in line wit the path toward the opposite wall over the outer end 30 of the thread passage, and 'means on the said opposite wall extended above and overlapping the beak and having a thread-engaging and depressing surface down-curved toward the shuttle-tip to positively engage 35 and depress the thread below the beak.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

EDWARD S. STIMPSON.

\Vitnesses GEORGE E. CHANDLER, E. D. Osooon.

shuttle 25 opposite upturned walls forming g 

